Sinclair Bump gauge or Hornady LNL headspace gauge

[jschroed]

Lookig at purchasing one of those items to measure shoulder set-back during FL sizing. Your thoughts on either?

 

[steve4102]

They are same, same. I have the original Stoney Point now Hornady and it works great. Go with whatever is easiest to order.

 

[bheadboy]

i have used both and find no differance

Bob

 

[CoverDog]

Both gauge bodies are the same, the difference is in the insert. Hornady's are aluminum where the Sinclair's are SS. Sinclair's also have a slight bevel to the opening in them. I also use Sinclair's SS bullet comparator inserts in the same gauge body.

 

[RJinTexas]

The Sinclair bump gauge inserts are machined to fit a particular shoulder angle which results in a better fit making it easier to get repeatable measurements. They're more expensive but in my opinion worth it.

RJ

 

[Martin52]

I have both the Sinclair and the Hornady versions. Due to the different inserts I find the measurements are different for the same resized case. This is not necessarily a problem (provided you don't swap between the Sinclair with the Hornady) as we are interested in the relative measurement ie the amount of setback relative to the h/s of a fired case.

I have recently purchased a cartridge headspace gauge from Davies Triggers (www.daviestriggers.com.au) and it is the best of the 3. They also make a base to ogive gauge.

Martin